Folding Coin(Coin In Bottle) - Johnson

One of the most amazing close-up effects has always been the coin in the bottle. Many magicians have built their reputation on this trick alone. Magician borrows a coin and an empty bottle. With the spectator holding the bottle, you apparently knock the borrowed coin right through the bottom of the bottle. After everyone has confirmed that the coin is actually inside the bottle you shake the coin out through the neck.